dunks



C. H. DUNKS.

Spring Bed-Bottoms. I No, 142,377" PatentedSeptember2,1873-.I

Witnesses: V Invemurr. W 6 M6? M v Anorneys.

NI'IED STATES CHARLES H. DUNKS, OF NEW YORK, N. Y.

IMPROVEMENT SPRING B E D-BOTTOMS.

Specification forming part of Letters Patent To all whom it may concern.

Be it known that I, CHARLES H. DUNKs, of the city, county, and State of New York, have invented a new and Improved Spring Bed- Bottom, of which the following is a specification:

The invention consists in the improvement of bed-bottoms, as hereinafter fully described and pointed out in the claim.

Figure 1 is across-section of a portion of a spring bed-bottom constructed according to my invention, and Fig. 2 is a plan view.

Similar letters of reference indicate corresponding parts.

A represents the lower transverse bars, whereon the coiled springs B rest. 0 represents thin steel transverse springs mounted on the top of the springs, and D represents the longitudinal top slats. The springs I secure to the cross-bars A by nailing a portion of the lower coil with, say, two staples, E, in connection with the driving of the end of the spring itself into the wood about an inch, more or less, as at F, the end portion for about that length beingbent at right angles for the purpose. This is cheaper than the common way of knottiug the end to the coil, as they are commonly arranged, and the fastening is stronger. G re presents the strings which I use to cushion the springs; they are stretched along the cross-bars from end to end, fastened No: 142,397, dated September 1873; application filed June 7, 1873.

thereat, and arranged at such distance apart that the lower coils rest on them at three different points, and strike at a fourth when pressed down, and thus prevent contact of any part with the woodso as to rub and make a noise. I

The relative arran gement of the longitudinal slats D with the coiled springs is clearly shown in Fig. 1, in which it will be observed that two slats are arranged to each spring over the sides, so that the thin cross-strips of steel will not be bent between them and the top of the spring, and the slats are permanently attached to the cross-slats by rivets, which makes the bottom much more durable than when detachably connected.

I am aware rubber plates or blocks have been heretofore employed to cushion the springs of a bed-bottom.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination in a bed'bottom, with 1ongitudinal slats D, of transverse plate-springs 0, supported upon coiled springs B, arranged between the slats, as and for the purpose described.

' O. H. DUNKS.

Witnesses:

'l. B. MOSHER, ALEX. F. RoBERTs. 

